§ The result
4 points separate micro1 and Arena Analytics.
Within the Screening cohort, micro1 edges Arena Analytics by 4 points under rubric v1.0, 36 to 32. Arena Analytics takes 3 of the 7 criteria, Bias Audit Transparency among them, against 4 for micro1, whose share includes Article 11 Technical Documentation. One criterion, Article 11 Technical Documentation, is both the widest raw gap (Arena Analytics 30, micro1 50) and the heaviest weighted swing, and at 20% weight it makes up 64% of the weighted advantage micro1 holds across the 4 criteria it leads.
Vendor profile
Arena Analytics
Arena scores job applicants, mainly for healthcare and senior-living employers, on how likely they are to show up and stay in a specific role at a specific location, reroutes and sources candidates it rates likely to be retained, and applies the same outcome models to employee flight risk and internal mobility.
Vendor profile
micro1
Zara, micro1's LLM-based AI interviewer, runs recorded, adaptive spoken interviews (with optional coding exercises and automated proctoring) and returns per-skill proficiency ratings, soft-skill ratings and a proctoring score; micro1 uses it to certify experts for its own AI-training talent network, and employers can use it through a client portal and API.
§ The record
Arena Analytics and micro1 are both filed under Screening AI. They also share 1 secondary category: Assessment.
Both are in scope of EU AI Act, NYC LL 144, Colorado AI Act, Illinois HB 3773 and Mobley v. Workday.
| Record | Arena Analytics | micro1 |
|---|---|---|
| Price tier | Enterprise | Mid |
| Headquarters | US | US |
| Founded | 2015 | 2022 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 51% of the movement so far
Article 11 Technical Documentation
Arena Analytics 30 · micro1 50
4.0 weighted points to micro1
12% weight · 66% of the movement so far
Human Oversight Design
Arena Analytics 38 · micro1 48
1.2 weighted points to micro1
18% weight · 77% of the movement so far
Bias Audit Transparency
Arena Analytics 25 · micro1 20
0.9 weighted points to Arena Analytics
8% weight · 84% of the movement so far
Customer Documentation
Arena Analytics 38 · micro1 45
0.6 weighted points to micro1
15% weight · 90% of the movement so far
FRIA Support
Arena Analytics 25 · micro1 22
0.4 weighted points to Arena Analytics
15% weight · 95% of the movement so far
Data Governance Disclosure
Arena Analytics 42 · micro1 45
0.4 weighted points to micro1
12% weight · 100% of the movement so far
Post-Market Monitoring
Arena Analytics 28 · micro1 25
0.4 weighted points to Arena Analytics
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -4.5 — the difference between the two totals before either is rounded. Shares are of 7.9 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -4 beside that -4.5.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Arena Analytics minus micro1.
| Category | Weight | Arena Analytics | micro1 | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 30 | 50 | -20 | -4.0 |
| Bias Audit Transparency | 18% | 25 | 20 | +5 | +0.9 |
| FRIA Support | 15% | 25 | 22 | +3 | +0.4 |
| Data Governance Disclosure | 15% | 42 | 45 | -3 | -0.4 |
| Human Oversight Design | 12% | 38 | 48 | -10 | -1.2 |
| Post-Market Monitoring | 12% | 28 | 25 | +3 | +0.4 |
| Customer Documentation | 8% | 38 | 45 | -7 | -0.6 |
| Total | 100% | 32 (F) | 36 (F) | -4 | -4.5 |
§ Evidence
Cited sources and documented absences, criterion by criterion.
An absence is a finding, not a blank: the reviewer looked for a named artefact and recorded that it is not located. Where a source sits is a fact about hosting only.
| Criterion | Weight | Arena Analytics | micro1 | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 3 | 1 | Sources on a separate domain | 4 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Bias Audit Transparency | 18% | 2 | 1 | — | 4 | 1 | Sources on the vendor's own domainSources on a separate domain |
| FRIA Support | 15% | 1 | 1 | Sources on the vendor's own domain | 1 | 2 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 6 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Human Oversight Design | 12% | 6 | 1 | Sources on the vendor's own domain | 7 | 0 | Sources on the vendor's own domainSources on a separate domain |
| Post-Market Monitoring | 12% | 2 | 1 | Sources on the vendor's own domain | 2 | 2 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 3 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| All criteria | 100% | 23 | 7 | Sources on the vendor's own domainSources on a separate domain | 25 | 8 | Sources on the vendor's own domainSources on a separate domain |
Arena Analytics has 30 evidence rows across 7 of 7 criteria — 23 with a source URL, 7 documented absences; micro1 has 33 evidence rows across 7 of 7 criteria — 25 with a source URL, 8 documented absences; some documentation or audit rows for Arena Analytics and micro1 sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 63 evidence rows on file for these two vendors: 30 for Arena Analytics, across 3 distinct source domains, and 33 for micro1, across 3 distinct source domains.
- Rubric
- v1.0
- Arena Analytics last reviewed
- September 25, 2026 · HireAIScore editorial team
- micro1 last reviewed
- September 25, 2026 · HireAIScore editorial team
HireAIScore scores are editorial research, not legal advice, and no vendor pays for placement, scoring or removal — see the methodology, conflicts policy and terms.
§ Where next